Express the function as the sum of a power series by first using partial fractions f(x)=x+11/2x^2-19x-10 f(x)= sigma _n=0 ^ infinity )^n+1/2^n+1)x^n

Which of the following questions describes the equation g + (-4) = -5? a)what number, when added to negative four, is equal to negative five? b)what number, when added to negative five, is equal to negative four? c)what number, when subtracted from negative four, is equal to negative five? d)what number, when subtracted from negative five, is equal to negative four?